灰铸铁缸体珠光体含量偏低原因分析与改进  

Analysis of Reason Causing Low Pearlite Content of Gray Iron Block and Improvement

作　　者：李明 潘晓东 

机构地区：[1]潍柴动力股份有限公司铸锻厂,山东潍坊261001

出　　处：《现代铸铁》2005年第5期45-48,共4页Modern Cast Iron

摘　　要：介绍对WD615气缸体铸件本体金相组织所进行的研究。为分析铸件某些薄壁部位珠光体含量比厚壁部位低的原因,采用了铸造凝固模拟技术,对不同合金元素改善金相组织的作用进行了对比,结果发现:加锡合金化能较有效地增加珠光体含量。The investigation on microstructure of WD615 cylinder lock casting itself was introduced. The solidification simulation technique was adopted to analyze the reason causing the pearlite content in some thin sections lower than that in heavy sections. The effects of different alloying elements to improve microstructure were compared. The results showed that pearlite content could be increased effectively by adding tin.

关 键 词：灰铸铁件 铸件本体金相组织 凝固模拟 材料性能 化学成分 熔炼控制 

分 类 号：TG251[金属学及工艺—铸造]